420343041 has 4 divisors (see below), whose sum is σ = 560457392. Its totient is φ = 280228692.

The previous prime is 420343039. The next prime is 420343067. The reversal of 420343041 is 140343024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 420343041 - 2¹ = 420343039 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420342999 and 420343017.

It is not an unprimeable number, because it can be changed into a prime (420343141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70057171 + ... + 70057176.

It is an arithmetic number, because the mean of its divisors is an integer number (140114348).

Almost surely, 2^420343041 is an apocalyptic number.

It is an amenable number.

420343041 is a deficient number, since it is larger than the sum of its proper divisors (140114351).

420343041 is a wasteful number, since it uses less digits than its factorization.

420343041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140114350.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420343041 is about 20502.2691670947. The cubic root of 420343041 is about 749.0910713544.

Adding to 420343041 its reverse (140343024), we get a palindrome (560686065).

The spelling of 420343041 in words is "four hundred twenty million, three hundred forty-three thousand, forty-one".